JetCat RX Series User manual
PAGE 2 of 54
JetCat Three Year Limited Warranty.
Ingenieurbüro CAT, M.Zipperer GmbH, Wettelbrunner Straße6, 79282 Ballrechten-Dottingen, Germany hereafter called
JetCat warrants that this MINATURE TURBOJET ENGINE for model aircraft, cars or boats ("Model Engine") enclosed with
this warranty statement is free from defects in materials and workmanship during normal usage, according to the following
terms and conditions.
1) The limited warranty extends to the original purchaser ("Buyer") of the Model Engine and is assignable or transferable to any
subsequent purchaser /end-user.
2) Upon request from JetCat, the Buyer must prove the date of the original purchase of the Model Engine by a dated bill of sale or
dated itemized receipt.
3) Warranty coverage begins the day you buy the Model Engine. For 3 (three) years all labor and parts except for the glow plug
bearings and battery will be repaired or replaced free of charge. All parts, including repaired and replaced parts are covered for
the original warranty period. When the warranty on the Model Engine expires, the warranty on all replaced and repaired parts also
expires.
4) During the limited warranty period, JetCat will repair or replace, at JetCat‘s option, any defective parts with new or factory rebuilt
replacement items if such repair or replacement is needed because of Model Engine malfunction or failure during normal usage.
No charge will be made to the Buyer for any such parts. JetCat will also pay for the labor charges incurred by JetCat in repairing
or replacing the defective parts. The limited warranty does not cover defects in appearance. JetCat shall not be liable for any
other losses or damages.
5) The Buyer must operate and maintain the Model Engines in accordance to the Model Engine manual. The Model Engine must be
returned to JetCat for maintenance on or before the TBO (Time Before Overhaul) interval of every 25 hours. lf Buyer fails to return
the Model Engine within the. TBO interval, any damaged parts affected by this negligence will be subject to additional repair
costs.
6) The Buyer shall have no coverage or benefits under this limited warranty if any of the following conditions are applicable
a) The Model Engine has been subject to abnormal use, abnormal conditions, improper storage, unauthorized modifications,
unauthorized repair, misuse, neglect, abuse, accident, alteration, improper installation or other acts which are not the fault of
JetCat, including damage caused by shipping.
b) The Model Engine has been damaged from external causes such as crash damage, foreign object damage, weather, Act of
God, improper electrical connections, or connections to other products not recommend for interconnection by JetCat.
c) The Model Engine is operated for commercial or institutional use.
d) The Model Engine serial number has been deliberately removed, defaced or altered.
7) If a problem develops during the limited warranty period, the Buyer shall take the following step-by-step procedure:
a) The Buyer shall ship the Model Engine prepaid and insured to JetCat.
b) The Buyer shall include a return address, daytime phone number, complete description of the problem and proof of purchase.
c) The Buyer will be billed for any parts or labor charges not covered by this limited warranty.
d) If the Model Engine is returned to JetCat during the limited warranty period, but the problem with the Model Engine is not
covered under the terms and conditions of this limited warranty, the Buyer will be notified and given an estimate of the charges
the Buyer must pay to have the Model Engine repaired, with all shipping charges billed to the Buyer. If the estimate is refused, the
Model Engine will be returned freight collect. lf the Model Engine is returned to JetCat after the expiration of the limited warranty
period, JetCat ‘s normal service policies shall apply and the Buyer will be responsible for all shipping charges.
8) The Buyer must bear the cost of shipping the Model Engine to JetCat, Germany. JetCat shall bear the cost of shipping the Model
Engine back to the Buyer after the completion of service under this limited warranty. The Buyer must pay for any other shipping
charges.
9) The Model Engine consists of newly assembled equipment that may contain used components that have been reprocessed to
allow machine compliance with Model Engine performance and reliability specifications.
I0) JetCat shall not be liable for delay in rendering service under the limited warranty, or loss of use during the period that the Model
Engine is being repaired.
11) JetCat neither assumes nor authorizes any other person or entity to assume for it any other obligation or liability beyond that is
expressly provided for in this limited warranty.
I2) This is the entire warranty between JetCat and the Buyer, and supersedes all prior and contemporaneous agreements or
understandings, oral or written, and all communications relating to the Model Engine, and no representation, promise or condition
not contained herein shall modify these terms.
I3) Buyer must fully accept all conditions of the PURCHASE AGREEMENT, FULL ASSUMPTION OF LIABILITY AND INDEMNITY
AGREEMENT
I4) lf the Buyer is not prepared to fully accept the liability associated with the use of this Model Engine, the Buyer is advised to
return this Model Engine immediately in new and unused condition to the place of purchase.
I5) This limited warranty allocates the risk of failure of the Model Engine between the Buyer and JetCat. The allocation is recognized
by the Buyer and is reflected in the purchase price of the Model Engine.
I6) Questions concerning the warranty may be directed to:
Ingenieurbüro CAT
M.Zipperer GmbH
Wettelbrunner Straße 6
79282 Ballrechten-Dottingen
Germany
Phone +49-7634-5056-800
PAGE 3 of 54
Inhaltsverzeichnis
INTRODUCTION .........................................................................................................................................................5
QUICK START SECTION FOR RX TURBINES WITH V10 ECU........................................................................8
IDENTIFY COMPONENTS ...............................................................................................................................................8
MOUNTING THE TURBINE SUPPORT EQUIPMENT (RX) ...............................................................................9
MOUNTING THE TURBINE (RX/RXI)....................................................................................................................9
TURBINE SIDE VIEW /THRUST TUBE ...........................................................................................................................10
INLET PROTECTION...............................................................................................................................................10
CONNECTIONS .........................................................................................................................................................11
COMPLETE SYSTEM CONNECTION DIAGRAM RX.......................................................................................................11
COMPLETE SYSTEM CONNECTIONS RX PHOTO.........................................................................................................12
FUEL CONNECTIONS RX.............................................................................................................................................13
HOPPER TANK -UAT.................................................................................................................................................13
ELECTRICAL CONNECTION .........................................................................................................................................14
INTERCONNECTIONS...................................................................................................................................................14
COMPLETE SYSTEM CONNECTION DIAGRAM RXI......................................................................................................15
SYSTEM CONNECTION RXI PHOTO ............................................................................................................................16
POWER........................................................................................................................................................................17
GROUND SUPPORT UNIT (GSU)...........................................................................................................................18
GSUCONTROL PANEL DESCRIPTIONS .......................................................................................................................18
GSU SWITCH DESCRIPTIONS .....................................................................................................................................19
THE LED I/O BOARD ...............................................................................................................................................19
DESCRIPTION OF LEDS ON THE GSU AND LED BOARD.............................................................................................19
JETCAT V10 ECU......................................................................................................................................................20
SWITCHING ON THE ECU ...........................................................................................................................................20
SINGLE OR TWO CHANNEL OPERATION? ......................................................................................................21
HOW TO SET YOUR ECU FOR SINGLE CHANNEL OPERATION.......................................................................................21
SETUP FAILSAFE MODE ........................................................................................................................................21
SETTING THE FAILSAFE ..............................................................................................................................................21
“LEARN R/C”. TEACH THE ECU TO THE R/C SYSTEM.................................................................................23
VERIFY FAILSAFE PROGRAMING.................................................................................................................................25
PREPARING FUEL AND FUEL SYSTEM .............................................................................................................25
FUELING ON BOARD TANKS........................................................................................................................................25
PRIME THE PUMP AND SYSTEM (NOT NEEDED FOR THE RXI)......................................................................................26
RUNNING THE TURBINE FOR THE FIRST TIME.............................................................................................26
THE CHECKLIST .........................................................................................................................................................26
BEFORE RUNNING THE TURBINE................................................................................................................................26
AFTER STOPPING THE TURBINE..................................................................................................................................26
STARTING AND STOPPING THE TURBINE .....................................................................................................................27
AFTER THE START PROCESS IS INITIATED,THE FOLLOWING OCCURS:.........................................................................27
AUTOMATIC COOLING PROCESS ................................................................................................................................27
GSU (RUN MENU DEFAULT) DISPLAY SYMBOLS...........................................................................................28
INITIAL DEFAULT DISPLAY SCREEN AFTER POWER UP.................................................................................................28
AFTER POWER UP –“ERROR CONDITION”DISPLAY SCREEN........................................................................................28
TURBINE STARTING DISPLAY SCREEN.........................................................................................................................30
TURBINE RUNNING DISPLAY SCREEN..........................................................................................................................30
PAGE 4 of 54
TURBINE RUNNING STATES.................................................................................................................................30
EXPLANATION OF THE TURBINE STATES....................................................................................................................31
TROUBLESHOOTING..............................................................................................................................................33
MOST FREQUENT ERRORS.CAUSE AND REMEDY:.......................................................................................................33
REASON FOR AN UNEXPECTED SHUT-DOWN..............................................................................................................34
MANUAL ADVANCED SECTION...........................................................................................................................35
JETCAT ECU FEATURES VERSION 10.00...........................................................................................................35
Smoker valve.........................................................................................................................................................36
MENU STRUCTURE .................................................................................................................................................40
MENU SELECTIONS ....................................................................................................................................................40
Selecting a Menu...................................................................................................................................................40
Change Values / Items ..........................................................................................................................................40
THE RUNMENU........................................................................................................................................................40
THE MIN/MAX MENU ................................................................................................................................................41
THE R/C CHECK MENU..............................................................................................................................................41
THE INFO MENU.......................................................................................................................................................42
THE STATISTIC-MENU ...............................................................................................................................................43
THE LIMITS MENU ...................................................................................................................................................43
AIRSPEED SENSOR...................................................................................................................................................47
SPECIAL FUNCTION....................................................................................................................................................53
Temperatur adjustment.........................................................................................................................................53
Reset to Default Value .........................................................................................................................................54
PAGE 5 of 54
Introduction
Welcome to the Jet Age of model aircraft! JetCat is pleased to sell, support and service the JetCat turbine
engine and greatly appreciates your purchase. We hope the JetCat turbine brings you many days of
pleasurable flying.
Obviously, model turbine aviation - despite all the apparent fun involved - is serious business. The JetCat
turbine has undergone extensive testing and redesign, in order to ensure it is a safe and reliable model
turbine; however, it is not a recommended power source for the average model builder. It requires a good
background in model flying and a working understanding of the principles of turbine engines, along with a
disciplined commitment to correct and safe operation, in accordance with these instructions.
To begin, read this manual thoroughly. Develop an overall impression of the turbine and its operating
procedures, measuring equipment and accessories. Study the material step-by-step and ascertain how to
install, operate and maintain your turbine engine. If you are unsure about anything, re-read it again.
DO NOT OPERATE THE JetCat turbine BEFORE YOU HAVE READ THE MANUAL AND FULLY
UNDERSTAND EVERY PROCEDURAL DETAIL
Should you still have doubts or questions, do not hesitate to contact JetCat for further assistance.
The JetCat model jet turbine closely functions like a full size jet turbine. A centrifugal compressor
compresses the incoming air which is mixed in the combustion chamber with fuel (jet fuel / kerosene) and
ignited. The result is a rapidly expanding volume of gas that drives an axial turbine wheel. The gas exiting
the exhaust cone produces the required thrust for the jet model. To start the turbine, an electric motor is
mounted on the front of the turbine. During startup to preheat the combustion chamber was formerly done
with an auxiliary gas (propane / butane). However, the new JetCat RX series turbines utilize an internal
kerosene start system using only a single fuel (kerosene) for starting and running. This single fuel
operation is a more appropriate and simpler way of starting instead of the using a glow plug and an
auxiliary fuel. RX turbines have the fuel control valves mounted internally for a very simple single fuel
connection. The compressor is machined from high strength aluminum alloy using modern CNC
technology. This guarantees even higher speed stability and an incredibly fast and precise acceleration.
The JetCat V10 ECU is a sophisticated on-board electronics that controls and monitors all the operating
parameters. The parameters are displayed on the included hand held terminal (GSU) and several can be
modified by the user for optimizing different installations. The power supply for all on board components,
including the internal starting plug, is supplied via a 9.9V lithium iron phosphate battery.
The complete turbine kit contains all components required for operation and is a “plug and play”
configuration.
PAGE 6 of 54
Safety, meaning of symbols
Attention!
This symbol highlights the following points which must be strictly observed by the user! Any violation
of the corresponding restrictions may impair the safe operation and the safety of the user.
Attention!
This symbol highlights restrictions which must be strictly observed by the user! Any violation of the
corresponding restriction may impair the functional efficiency and severely compromise user safety.
Attention!
This symbol highlights information that should be heeded by the user to ensure safe operation of the
device
Attention!
Fire or explosion hazard!
Attention!
This symbol warns of hot objects and surfaces.
Any violation of the corresponding restriction may affect the health of the user.
Safety Precautions
Warning!
Errors and/ or defects in the construction or operation of a jet model can lead to personal
injury or even dead
Attention!
Before you put a model aircraft in operation, you must learn about the law. Legally, a model
aircraft is a real aircraft and is subject to applicable laws which must be strictly adhered to.
The rules of other countries are to be observed accordingly.
Warning!
It is your responsibility to protect others from injury. The minimum operation distance of
residential areas to ensure the safety of people, animals and buildings must be at least 1 mile.
Never operate model turbine jet aircraft in or around residential or heavily populated areas.
Keep a safe distance away from power lines. Do not fly the model in bad weather with low
clouds of fog. Never fly into direct sunlight, otherwise you might lose sight of model. To
avoid collisions with manned or unmanned aircraft, land your plane immediately if a plane
approaches. Persons or animals must comply with the following minimum safety distances
form a turbine model:
In front of the turbine =15 feet
On the side of the turbine =25 feet
Behind the turbine =15 feet
Warning!
The construction and operation of the model and / or turbine under the influence of alcohol,
drugs, medicines, etc. are strictly forbidden. These activities must take place only in the best
physical and mental health condition. This applies to both the operator and any assistants.
Warning!
The jetCat model turbines were designed exclusively for model aircraft and are NOT suitable
for any other purpose. Never use for any other purpose except for the flight of the model.
Any other types of uses may result in personal injury or death.
Warning!
Any deviations from these instructions or the instructions of the manufacturer, the use of
other parts or materials or changes to the system may have an adverse effect on the
functionally and reliability of the turbines and therefore must be avoided at all costs.
Warning!
The operation of a model jet turbine can only be done under strict accordance of the model,
remote control and turbine operation manual. Before flying the model, all control functions
and surfaces as well as the range of the remote control system must be checked in the
accordance of the manufacture. The checking of these operations must be repeated with a
running turbine engine including the remote control system range.
Warning!
In case of a mishap, fire extinguishers should be on hand at all times. JetCat recommends the
CO/2 variety. Powered extinguishers will corrode the precision components inside the turbine
and void your warranty.
PAGE 7 of 54
WARNING!
When the turbine is running, never place your hands closer than six inches into the area of the
intake. An extreme suction which can grasp a hand, fingers or other objects in an instant
exists in this area. Always be aware of this source of danger!
Prevent foreign materials from entering the intake or exhaust when working with the turbine.
Before operation, make sure there are no lose parts or debris near the turbine. Objects being
sucked in can cause severe damage. If your installation allows, we highly recommend using a
“Jet Net” to protect the intake.
WARNING!
Never run the turbine in a closed room, or an area near any kind of flammable matter. Do not
fly turbine-powered aircraft near flammable materials, nor in forested tracts or areas
experiencing drought or dryness. Obey all forest fire regulations and warnings by refraining
from operating the JetCat turbine in restricted fire zones.
WARNING!
The overflight of people, especially at low altitude, is strictly prohibited
Attention!
Always exercise caution around the hot parts of the turbine, to avoid burns. The outer case at
the turbine stage and nozzle reaches 450-600(Celsius), while the exhaust gas may exceed
800 C.
WARNING!
Assure that the fuel is mixed with approximately 5% synthetic oil. Use only synthetic turbine
oils available at local airport fuel suppliers. Synthetic turbine oils are dangerous and should
only be handled as per the manufactures MDS sheets. JetCat has available a compatible oil
that is less harmful that also contains an antistatic ingredient. Contact JetCat for more
information.
WARNING!
To the avoid hearing damage, always use hearing protection when you are near a running
turbine engine!
PAGE 8 of 54
Quick Start section for RX turbines with V10 ECU
This section covers just the very basics to get your JetCat turbine up and running. However, it is not a
substitute for reading and understanding the manual in its entirety. There are many great features and
options not cover in this section that are fully explained later.
Identify components
Mounting turbine support equipment
Mounting turbine and fitting to tail pipe
Fuel and electrical connections
Battery power
GSU and I/O board
ECU power, setting failsafe and learn R/C
Preparing fuel and fuel system
Starting and stopping the turbine
Running states
Troubleshooting
Identify components
1 –Turbine engine
1 –Pump Cable
(only RX)
1 –GSU, Ground Support Unit (Terminal)
1 –Fuel Line
1 –ECU, Electronic Control Unit
1 –Fuel Filter
(only RX)
1 –Mini I/O board
1 –Turbine Mount
1 –Pump (only RX)
1 –Battery Pack
1 –Turbine Power/Data Cable
1 –I/O Board Flat Cable
1 –GSU Data Cable
PAGE 9 of 54
Mounting the turbine support equipment (RX)
There are just four main accessory components to decide where and how to mount in your model, (battery,
ECU, I/O board and pump). Judge how to position these components within the cable lengths by laying
them out in your model approximately where you would like to mount them. Since the components of the
new RX series engines are so small, the default cables lengths should work for most installations. If longer
cables are needed, consider a battery cable extension with heavy gauge wire as the simplest approach.
1. Battery. Usually the battery will mount in the nose area for balance requirements. When mounting,
make sure it is secure but accessible since it is a component you will be removing regularly.
2. ECU should be mounted on a wood plate typically with Velcro. It should
also be located in an easy location for removal. Consider applying the
Velcro on the opposite side of the “on” switch access hole. See photo.
3. The I/O board should be mounted where the LED indicators will be visible
and the data bus jack accessible for plugging in the GSU.
4. Ideally the pump should be mounted inverted using 4/40 screws and nuts
through the flange holes (tubes mounted down and electrical connections
on top. The pump requires a 1” diameter clearance hole. The pump can also me mounted
horizontally with cable ties or clamp. Make sure that the fuel tubes will route so the fuel filter will be
easy to access for cleaning. Favor the pump nearer to the UAT hopper tank keeping the inlet tube
length as short as possible.
In the above pictures is one example on how to mount the pump. In this case, there was plenty of room
under the mounting plate to not pinch the tubes exiting the pump.
Mounting the turbine (RX/RXi)
A two-piece, aluminum mounting bracket is included with the turbine. Place the bracket around the turbine,
with the center plug situated within the slot of the bracket or in the grooved portion of the turbine body
depending on turbine type. This will help stabilize the turbine along the thrust axis. Secure the turbine,
using four metric mounting screws and lock washers that are provided with brackets. The turbine can be
set to any 360 degree rotational position.
Underside
view of
equipment
plate
Topside view
of equipment
plate
PAGE 10 of 54
Turbine side view / thrust tube
For internally mounted turbines that do not utilize a bypass, set the ducting inlet ½ to ¾ of an inch after the
end of the exhaust nozzle. For bypass installations, refer to the kit instructions for mounting the turbine.
Use either reflective material or BVM heat shield paint to protect the fuselage near the hot section of the
turbine. Do not mount electrical components, fuel tubing or parts that could melt around the hot
section of the turbine.
Inlet Protection
Especially for models that have the air intake below the fuselage behind the nose wheel (F16 for example),
there is the danger of small stones or dirt entering the turbine. In these cases you must incorporate intake
protection (screen) in front of the turbine.
JetCat recommends a “Jet Net” to protect the turbine from debris. Available from JetCat!
PAGE 11 of 54
Connections
Once you have unpacked and identified all the components, follow the system diagram/photo for all
connections.
Complete System Connection Diagram RX
PAGE 12 of 54
Complete System Connections RX Photo
Receiver,
NOT
INCLUDE
D
Receiver
AUX input
cable.
Connect to
AUX
channel –
OPTIONA
L, Not
used for
single
channel
operation
Fuel
input
BVM
UAT,
NOT
INCLUD
ED
Fuel
filter
6m
m x
4m
m
ada
pter
Ballcoc
k valve
Not
required
Fuel
pump
ECU Batter
y
I/O
board
Power
data
cable
Receiver throttle
input cable.
Connect to
throttle channel
6mm
tubing,
included
with
OPTIONA
L UAT
4m
m
tubi
ng
PAGE 13 of 54
Fuel connections RX When installing tubing on a metal nipple fitting,
secure the tubing by a double loop of safety wire
around the connection. To remove tubing from the
nipples, you must cut the tubing off. Be careful not
to damage the nipple when cutting off the tubing.
Warming the tubing can make it easier to slip over
the nipple fitting. To insert tubing into Festo quick
release fittings, use firm pressure until you feel the
tube snap in. To release, press in on the blue
plastic front ring, while pulling the tubing out.
The ballcock valve can be put on either side of the
filter. When assembling the fuel filter, use caution
not to pinch the O-ring when assembling. Clean off
aluminum dust and lubricate fine threads before
assembling.
We recommend mounting the fuel filter vertically. This will limit the possibility of air being trapped inside
and then coming out at an inopportune time. It is also better not to affix it but to leave it free to slightly
move.
ALWAYS use a gasoline-compatible stopper in your fuel tanks. Silicon stoppers swell and leak.
Hopper Tank - UAT
A hopper tank is recommended, between
the main fuel tank and the turbine.
JetCat highly recommends the BVM
UAT for the hopper tank! The UAT is
available as an option from JetCat.
Always use the filter between the fuel
pump and the turbine as shown in the
diagram. This is true even when using
the BVM UAT! The pump can emit small
particles that can block the internal
solenoid valves from completely closing!
The fuel demands are high, especially on larger engines, and require large tubing
interconnecting the tanks. Use a 6 mm to 4 mm adapter to reduce the UAT 6 mm tubing to
the 4 mm tubing connecting to the pump inlet.
For safety reasons, JetCat recommends to replace the fuel pump after 25 hours of flight!
Arrow indicates
fuel direction
Festo
fitting
Filter only at RX
engines
PAGE 14 of 54
Electrical connection
Interconnections
Connect the fuel pump cable to either
connector on the fuel pump and the ECU.
Connect the Power/Data cable to the
turbine and ECU.
Connect the Flat cable to the LED I/O
board and ECU.
Connect a fully charged battery to the
ECU. To charge the battery, refer to the Power
section of this manual.
Throttle input
Optional AUX
input
Power data
cable
I/O board
flat cable
Battery
Pump
cable
Fuel pump
connection, use
either plug(RX)
ECU / Mini GSU –I/O
board connections.
Plugs are
interchangeable
Pump
Cabel (RX)
PAGE 15 of 54
Complete System Connection Diagram RXi
PAGE 16 of 54
System Connection RXi Photo
To fueltank
To receiver
PAGE 17 of 54
Power
The operating power for all components of the turbine (starter / glow plug / ECU / fuel pump / valves ...) is
from a 3-cell 9.9V 2200 mah LiFePo battery. Alternatively, a 2(3) cell 25C or better LiPoly battery can be
used, refer to battery types later in the manual in the Limits Menu options. The battery plugs directly into
the ECU and the ECU powers on automatically when the receiver is switched on. If you plan to store the
model for more than a few weeks, the battery should be disconnected.
Attention!
Fire! A LiPo/LiFePo battery can explode if incorrect charge parameters are used. You
should therefore always refer to the manufacturer's charger instructions. NEVER charge
the batteries unattended. Do not exceed the batteries maximum allowed charging
current. READ AND OBEY WARNINGS ON BATTERY BEFORE CHARGING!
Always ensure the batteries are at their optimal charge state before use. The battery is
heavily loaded because of the kerosene start. Please also note that at very low ambient
temperatures, LiPo/LiFePo batteries have lower capacities.
IMPORTANT: DO NOT INSERT A SWITCH BETWEEN THE BATTERY AND ECU.
PAGE 18 of 54
Ground Support Unit (GSU)
The GSU serves as a terminal for displaying and programming turbine parameters. It
may be connected or disconnected at any time. The real time nature of the ECU allows
the operator to adjust the turbine’s parameters, even when the turbine is running.
GSU Control Panel Descriptions
OPTIONAL: Mini GSU, Part# 61161-00
With all the functionality of the larger
version and, because of its small size
and weight, it can be mounted in the
model providing direct access to all
information and functions.
PAGE 19 of 54
GSU Switch Descriptions
Key
Explanation
Info
Directly displays the Info menu (Hotkey).
Run
Directly displays the Run menu (Hotkey).
Limits
Directly displays the Limits menu (Hotkey).
Min/Max
Directly displays the Min/Max menu (Hotkey).
Select Menu
When the Select Menu key is pressed and held, the ◄ - / ►+ keys are used to select
another menu. When a desired menu is reached, release the Select Menu key, and
your selection becomes the currently displayed menu.
Change
Value/Item
When the Change Value/Item key is pressed and held, the ◄ - / ►+ keys are used to
change the indicated value. If the value is admissible to change, a small arrow appears
in the display before the value. If the indicated value cannot be changed (e.g.: current
RPM or temperature), the display will indicate that the “Value/Item cannot be changed”.
The LED I/O Board
The LED I/O (Input/Output) board is a connection point for the data bus and a display for the current status
of the ECU. The LED I/O board also features a pushbutton switch function to learn your R/C system,
calibrate EGT probe or reset all parameters back to default (when powered up). These procedures are
described later.
Description of LEDs on the GSU and LED board
Please take the time to understand the table above especially the descriptions for the
Select Menu and Change Value/Item keys. These are often used for viewing additional
menus other than the Hotkey menus and for changing ECU settings.
Color
Designation
LED is on
LED flashes
Yellow
Standby / start
Starter Motor engaged
---
Red
Pump running
Fuel pump is on
Kerosene glow plug defective or turbine power /
data cable is disconnected
Green
OK
Turbine running:
throttle control active
If the turbine is running, the EGT is exceeding
the maximum temperature.
If the turbine is off, Slow Down mode is active
If the yellow Standby and green OK LED’s blink simultaneously, the battery is low and must
be recharged.
Push button
switch
LEDs
Data bus jack for
connection to the
GSU
PAGE 20 of 54
OPTION: Part# 61168-00
The I/O board is enclosed within a housing and includes a
connector for charging the battery.
WARNING!
When you charge a LiPo/LiFePo battery, the battery
must be removed from the plane and never left
unattended. READ AND OBEY WARNINGS ON
BATTERY BEFORE CHARGING!
Jetcat V10 ECU
Switching on the ECU
The battery is directly plugged into the ECU connector or via the optional Charge Plate I/O board (part
#61168-00). NEVER use a switch between the battery and ECU!!!.
The ECU turns on automatically when power is applied to one of the two receiver connections, (THR and /
or AUX channel). If the ECU was powered on with the transmitter off (no servo pulse), then there is a 60
second delay if the ECU is immediately powered off. To force the ECU to power off, simultaneously press
the "Manual" and "Run" switches on the GSU.
The ECU can also be turned on without the receiver being powered on. To do this, there is a switch on the
ECU labeled "on" and with a ballpoint pen or similar device, press the switch for 5 seconds. Settings can
now be made or the turbine can be started via the GSU. After 60 seconds of inactivity, the ECU will shut off
automatically. By simultaneously pressing the "Manual" and "Run" switches on the GSU, the ECU can be
turned off immediately.
If the GSU is connected to the ECU then immediately after switching on the ECU, the GSU will briefly
display the software version number, starting fuel type and turbine type.
ECU version, V10.1G in this example
Starting fuel type, kerosene in this
example
This manual suits for next models
2
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